Relevant bibliographies by topics / Acoustic Bubbles

Academic literature on the topic 'Acoustic Bubbles'

Author: Grafiati
Published: 10 December 2022
Last updated: 29 January 2023

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Journal articles on the topic "Acoustic Bubbles"

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Desai, Pratik D., Woon Choon Ng, Michael J. Hines, Yassir Riaz, Vaclav Tesar, and William B. Zimmerman. "Comparison of Bubble Size Distributions Inferred from Acoustic, Optical Visualisation, and Laser Diffraction." Colloids and Interfaces 3, no. 4 (December 5, 2019): 65. http://dx.doi.org/10.3390/colloids3040065.

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Bubble measurement has been widely discussed in the literature and comparison studies have been widely performed to validate the results obtained for various forms of bubble size inferences. This paper explores three methods used to obtain a bubble size distribution—optical detection, laser diffraction and acoustic inferences—for a bubble cloud. Each of these methods has advantages and disadvantages due to their intrinsic inference methodology or design flaws due to lack of specificity in measurement. It is clearly demonstrated that seeing bubbles and hearing them are substantially and quantitatively different. The main hypothesis being tested is that for a bubble cloud, acoustic methods are able to detect smaller bubbles compared to the other techniques, as acoustic measurements depend on an intrinsic bubble property, whereas photonics and optical methods are unable to “see” a smaller bubble that is behind a larger bubble. Acoustic methods provide a real-time size distribution for a bubble cloud, whereas for other techniques, appropriate adjustments or compromises must be made in order to arrive at robust data. Acoustic bubble spectrometry consistently records smaller bubbles that were not detected by the other techniques. The difference is largest for acoustic methods and optical methods, with size differences ranging from 5–79% in average bubble size. Differences in size between laser diffraction and optical methods ranged from 5–68%. The differences between laser diffraction and acoustic methods are less, and range between 0% (i.e., in agreement) up to 49%. There is a wider difference observed between the optical method, laser diffraction and acoustic methods whilst good agreement between laser diffraction and acoustic methods. The significant disagreement between laser diffraction and acoustic method (35% and 49%) demonstrates the hypothesis, as there is a higher proportion of smaller bubbles in these measurements (i.e., the smaller bubbles ‘hide’ during measurement via laser diffraction). This study, which shows that acoustic bubble spectrometry is able to detect smaller bubbles than laser diffraction and optical techniques. This is supported by heat and mass transfer studies that show enhanced performance due to increased interfacial area of microbubbles, compared to fine bubbles.
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Ammari, Habib, Brian Fitzpatrick, David Gontier, Hyundae Lee, and Hai Zhang. "Sub-wavelength focusing of acoustic waves in bubbly media." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 473, no. 2208 (December 2017): 20170469. http://dx.doi.org/10.1098/rspa.2017.0469.

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The purpose of this paper is to investigate acoustic wave scattering by a large number of bubbles in a liquid at frequencies near the Minnaert resonance frequency. This bubbly media has been exploited in practice to obtain super-focusing of acoustic waves. Using layer potential techniques, we derive the scattering function for a single spherical bubble excited by an incident wave in the low frequency regime. We then propose a point scatterer approximation for N bubbles, and describe several numerical simulations based on this approximation, that demonstrate the possibility of achieving super-focusing using bubbly media.
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Reeder, D. Benjamin, John E. Joseph, Thomas A. Rago, Jeremy M. Bullard, David Honegger, and Merrick C. Haller. "Acoustic spectrometry of bubbles in an estuarine front: Sound speed dispersion, void fraction, and bubble density." Journal of the Acoustical Society of America 151, no. 4 (April 2022): 2429–43. http://dx.doi.org/10.1121/10.0009923.

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Estuaries constitute a unique waveguide for acoustic propagation. The spatiotemporally varying three-dimensional front between the seawater and the outflowing freshwater during both flood and ebb constitutes an interfacial sound speed gradient capable of supporting significant vertical and horizontal acoustic refraction. The collision of these two water masses often produces breaking waves, injecting air bubbles into the water column; the negative vertical velocities of the denser saltwater often subduct bubbles to the bottom of these shallow waveguides, filling the water column with a bubbly mixture possessing a significantly lower effective sound speed. A field experiment was carried out in the mouth of Mobile Bay, Alabama in June 2021 to characterize estuarine bubble clouds in terms of their depth-dependent plume structure, frequency-dependent sound speed and attenuation, bubble size distribution, bubble number density, and void fraction. Results demonstrate that sound speed in the bubbly liquid consistently falls below the intrinsic sound speed of bubble-free water; specifically, the bubbly liquid 1.3 m below the surface in a front in this environment possesses effective sound speeds, void fractions, and bubble number densities of approximately 750 m/s, 0.001%, and 2 × 106 bubbles/m3, respectively.
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Simaciu, Ion, Gheorghe Dumitrescu, Zoltan Borsos, and Anca Baciu. "Mach’s Principle in the Acoustic World." BULETINUL INSTITUTULUI POLITEHNIC DIN IAȘI. Secția Matematica. Mecanică Teoretică. Fizică 67, no. 4 (December 1, 2021): 59–69. http://dx.doi.org/10.2478/bipmf-2021-0020.

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Abstract The aim of this paper is to investigate the coupled oscillations of multiple bubbles within a cluster. The interaction between a bubble and the other bubbles in a cluster produces an additional mass. For a fixed number of bubbles and uniformly distributed (N ---gt------gt--- 1), in case of a certain value of the bubbles number density, we deduce the relations analogous to the Eddington relation (between the cluster radius and the bubble radius) and the Sciama relation (between the cluster radius and the gravitoacoustic radius) according to Mach’s Principle.
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Wang, Yu, Dehua Chen, Xueshen Cao, and Xiao He. "Theoretical and Experimental Studies of Acoustic Reflection of Bubbly Liquid in Multilayer Media." Applied Sciences 12, no. 23 (November 30, 2022): 12264. http://dx.doi.org/10.3390/app122312264.

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Bubbly liquids are widely present in the natural environment and industrial fields, such as seawater near the ocean bottom, the multiphase flow in petroleum reservoirs, and the blood with bubbles resulting in decompression sickness. Therefore, accurate measurement of the gas content is of great significance for hydroacoustic physics, oil and gas resources exploration, and disease prevention and diagnosis. Trace bubbles in liquids can lead to considerable changes in the acoustic properties of gas–liquid two-phase media. Acoustic measurements can therefore be applied for trace bubble detection. This study derived the reflection coefficient of acoustic waves propagating in a sandwich layering model with liquid, bubbly liquid, and liquid. The influences of gas contents on the reflection coefficient at the layer interface were analyzed based on theoretical calculations. It was revealed that the magnitude of the reflection coefficient and the frequency interval between its valleys have a quantitative correlation with the gas contents. Thus, a novel means to detect the contents of trace bubbles was proposed by evaluating the reflection coefficients. The reflection features of a thin layer with bubbly liquid were then studied through experiments. It was validated by acoustical measurements and theories that the reflection coefficient is considerably sensitive to the change of gas contents as long as the gas content is tiny. With the increasing gas content, the maximum value of the reflection coefficient increases; meanwhile, the frequency intervals between the valleys become smaller. However, when the gas content is extensive enough, e.g., greater than 1%, the effect of the change of gas content on the reflection coefficient becomes inapparent. In that case, it is not easy to measure the gas content by the acoustic reflection signals with satisfying precision. This proposed method has potential applications for the detection of trace gas bubble content in several scenarios, e.g., decompression illness prevention and diagnosis.
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Li, Fan, Xian-Mei Zhang, Hua Tian, Jing Hu, Shi Chen, Cheng-Hui Wang, Jian-Zhong Guo, and Run-Yang Mo. "Structure stability of cyclic chain-like cavitation cloud in thin liquid layer." Acta Physica Sinica 71, no. 8 (2022): 084303. http://dx.doi.org/10.7498/aps.71.20212257.

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In this paper, the evolution of the cavitation bubbles is investigated. A model is developed to describe the cyclic chain-like cavitation cloud and analyze its structure stability in a thin liquid layer. By considering the effect of secondary acoustic radiation of bubbles, the dynamic equations of the bubbles in three zones of the cyclic chain are obtained. The secondary Bjerknes force is selected and used to explore the interaction between the bubbles in different regions. Numerical results show that the newborn bubbles inside the pure liquid zone of the thin layer can be attracted by the bubbles at the cyclic chain-like bubble chain. The bubble number density can affect the coupling strength between bubbles, and it is closely related to the driving pressure. Therefore, the structure stability of cyclic chain-like cavitation cloud can be disrupted by the perturbations of the acoustic pressure. To verify our analysis, we observe the structure of cavitation cloud in a thin liquid layer in a strong acoustic field by using a high speed camera. It is observed that the simultaneous collapse of local bubbles occurs, and pure liquid-like thin layers are distributed in the bubble cloud randomly. The boundary of the pure liquid-like thin layers oscillates with the acoustic field, and these liquid zones sustain about 4 acoustic cycles. The experimental results accord well with theoretical results.
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Altay, Rana, Abdolali K. Sadaghiani, M. Ilker Sevgen, Alper Şişman, and Ali Koşar. "Numerical and Experimental Studies on the Effect of Surface Roughness and Ultrasonic Frequency on Bubble Dynamics in Acoustic Cavitation." Energies 13, no. 5 (March 3, 2020): 1126. http://dx.doi.org/10.3390/en13051126.

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With many emerging applications such as chemical reactions and ultrasound therapy, acoustic cavitation plays a vital role in having improved energy efficiency. For example, acoustic cavitation results in substantial enhancement in the rates of various chemical reactions. In this regard, an applied acoustic field within a medium generates acoustic streaming, where cavitation bubbles appear due to preexisting dissolved gas in the working fluid. Upon cavitation inception, bubbles can undergo subsequent growth and collapse. During the last decade, the studies on the effects of different parameters on acoustic cavitation such as applied ultrasound frequency and power have been conducted. The bubble growth and collapse mechanisms and their distribution within the medium have been classified. Yet, more research is necessary to understand the complex mechanism of multi-bubble behavior under an applied acoustic field. Various parameters affecting acoustic cavitation such as surface roughness of the acoustic generator should be investigated in more detail in this regard. In this study, single bubble lifetime, bubble size and multi-bubble dynamics were investigated by changing the applied ultrasonic field. The effect of surface roughness on bubble dynamics was presented. In the analysis, images from a high-speed camera and fast video recording techniques were used. Numerical simulations were also done to investigate the effect of acoustic field frequency on bubble dynamics. Bubble cluster behavior and required minimum bubble size to be affected by the acoustic field were obtained. Numerical results suggested that bubbles with sizes of 50 µm or more could be aligned according to the radiation potential map, whereas bubbles with sizes smaller than 10 µm were not affected by the acoustic field. Furthermore, it was empirically proven that surface roughness has a significant effect on acoustic cavitation phenomena.
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Mekki-Berrada, F., T. Combriat, P. Thibault, and P. Marmottant. "Interactions enhance the acoustic streaming around flattened microfluidic bubbles." Journal of Fluid Mechanics 797 (May 26, 2016): 851–73. http://dx.doi.org/10.1017/jfm.2016.289.

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The vibration of bubbles can produce intense microstreaming when excited by ultrasound near resonance. In order to study freely oscillating bubbles in steady conditions, we have confined bubbles between the two walls of a silicone microchannel and anchored them on micropits. We were thus able to analyse the microstreaming flow generated around an isolated bubble or a pair of interacting bubbles. In the case of an isolated bubble, a short-range microstreaming occurs in the channel gap, with additional in-plane vortices at high amplitude when Faraday waves are excited on the bubble periphery. For a pair of bubbles, we have observed long-range microstreaming and large recirculations describing a ‘butterfly’ pattern. We propose a model based on secondary acoustic Bjerknes forces mediated by Rayleigh waves on the silicone walls. These forces lead to attraction or repulsion of bubbles and thus to the excitation of a translational mode in addition to the breathing mode of the bubble. The mixed-mode streaming induced by the interaction of these two modes is shown to generate fountain or anti-fountain vortex pairs, depending on the relative distance between the bubbles.
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Ouyang, Di-Hua, Wen-Rong Yan, Qian-Tao Zhang, and Chun-Hai Yang. "Movement and acoustic radiation of a rising bubble from combustion of pyrotechnic mixtures using experiment and image processing method." Physics of Fluids 33, no. 10 (October 2021): 105114. http://dx.doi.org/10.1063/5.0063854.

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Bubble volume and bubble geometry are key parameters that affect the movement and acoustic radiation performance of bubble columns. This paper proposes an image processing method to study the movement and acoustic radiation characteristics of the rising bubbles originating from the combustion of a pyrotechnic composition based on high-speed photography. Results showed that during the rise of bubbles, their shape gradually changed from spherical to irregular, and their rising trajectory presented a curvilinear form. After the rising velocities of the bubbles in the z and x directions were compared, the results revealed that the rising velocity of the bubbles was unstable. The velocity of the rising bubbles in the direction of the z axis was much higher than that of the x axis. Meanwhile, the acceleration of bubble volume decreased first and then increased. This process was repeated; however, the amplitude of increase or decrease was inconsistent, which led to the generation of a certain amount of acoustic radiation effect, and it had a similar trend of change with the acceleration of bubble volume.
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Boziuk, Thomas R., Marc K. Smith, and Ari Glezer. "Dynamics of vapor bubble condensation under directional ultrasonic actuation." Physics of Fluids 35, no. 1 (January 2023): 017126. http://dx.doi.org/10.1063/5.0134326.

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Direct-contact condensation of vapor bubbles injected into a subcooled liquid is enhanced using ultrasonic O(1 MHz) acoustic actuation. In the absence of actuation, the surface tension-driven pinch-off process of the vapor bubble from the injection orifice induces a liquid spear that travels upward through the bubble and ruptures the top interface to form a toroidal bubble. Similarly, the acoustic actuator produces a narrow high-intensity acoustic beam that deforms the top interface of the vapor bubble via radiation pressure to form a liquid spear that travels downward though the bubble and ruptures the bottom interface to form a toroidal bubble. Comparisons between the growth and collapse of vapor bubbles in these two cases were performed using high-speed video imaging and particle image velocimetry. The results show that the actuated bubble collapsed about 35% faster than the unactuated bubble. The flow fields around the bubbles induced by the motion of the liquid spears are similar in both cases. By comparing vapor bubbles under different subcooling conditions with an unactuated, noncondensing air bubble, it was shown that condensation at the liquid–vapor interface strongly influences bubble collapse times and the velocity field surrounding each of the bubbles and that these effects increase as the level of subcooling increases.
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Dissertations / Theses on the topic "Acoustic Bubbles"

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Hardwick, Andrew John. "The acoustic sizing of bubbles in liquids." Thesis, University of Cambridge, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.260420.

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Harris, Ashley M. "Acoustic properties of toroidal bubbles and construction of a large apparatus." Thesis, Monterey, California. Naval Postgraduate School, 2004. http://hdl.handle.net/10945/1675.

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When a burst of air is produced in water, the result can be a toroidal bubble. This thesis is concerned with experimental investigations of three acoustical properties of toroidal bubbles: (i) propagation through high-intensity noise, (ii) emission, and (iii) scattering. In (i), an attempt to observe a recent prediction of the acoustic drag on a bubble is described, which is analogous to the Einstein-Hopf effect for an oscillating electric dipole in a fluctuating electromagnetic field. No effect was observed, which may be due to insufficient amplitude of the noise. In (ii), observations of acoustic emissions of volume oscillations of toroidal bubbles are reported. Surprisingly, the emission occurs primarily during the formation of a bubble, and is weak in the case of very smooth toroidal bubbles. In (iii), we describe an experiment to observe the effect of a toroidal bubble on an incident sound field. In addition to the acoustical investigations, we describe the construction of a large hallway apparatus for further investigations and for hands-on use by the public. The tank has cross section 2 feet by 2 feet and height 6 feet, and the parameters of reservoir pressure and time between air bursts are adjustable by the observer.
Lieutenant, United States Navy
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Ramble, David Gary. "Characterisation of bubbles in liquids using acoustic techniques." Thesis, University of Oxford, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.390369.

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Simmons, Stephen Michael. "Non-linear modelling of the acoustic response of bubbles." Thesis, University of Newcastle Upon Tyne, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.364761.

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McIntyre, Trevor A. "Ultrasonic acoustic characteristics of air bubbles in the surf zone." Thesis, Monterey, California. Naval Postgraduate School, 1995. http://hdl.handle.net/10945/26821.

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Understanding the movement of sediment in the nearshore region due to wave motion and longshore currents is important in beach erosion studies, and has tactical significance in beach front mine warfare. In the surf zone, an bubbles and sediment are both suspended within the water column. At the Naval Postgraduate School in Monterey, California, a sediment flux probe has been developed to study small scale processes. Using ultrasonic acoustic backscatter, the Coherent Acoustic Sediment Flux Probe (CASP) is capable of tracking the movement of scatterers within the surf zone. As it is important that the CASP system is capable of distinguishing between sediment and entrained air bubbles, laboratory experiments were run to determine the ultrasonic acoustic backscatter characteristics of surf zone bubbles. Bulk void fraction and optical sizing methods were explored to develop a means of measuring bubble populations produced in the laboratory for calibration of the backscattered energy received by the CASP system in the presence of bubbles
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Harris, Ashley M. "Accoustic properties of toroidal bubbles and contruction of a large apparatus /." Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2004. http://library.nps.navy.mil/uhtbin/hyperion/04Mar%5FHarris.pdf.

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Su, Yu-Hsuan 1965. "Numerical study of the nonlinear dynamics of the acoustic drops and bubbles." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/9434.

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Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1999.
Includes bibliographical references.
The dynamics of liquid drops and bubbles held together by surface tension and perturbed by small disturbances is of great interest to many researchers. Its essential physical nature is characterized by a nonlinear moving-boundary problem complicated by the interfacial stress interaction between two domains, each governed by their own dynamical systems respectively. In this thesis, the dynamics of an acoustically levitated drop is investigated. A low dimensional phase plane approach is used to interpret the nonlinear dynamics of the drop motions. It is found that the stability of shape oscillations imposes an upper limit on the acoustic bond number that can be used, while the lower limit is set by the stability of translational motion. The static equilibrium shapes can be obtained by incorporating the artificial damping into the system. The static equilibrium shapes thus found agree very well with the experimental data. In addition, that two-to-one internal resonance of a single bubble between the volume mode and one of the shape modes is carefully examined. instability wedges for unstable volume oscillations on the plane of volume oscillation amplitude versus frequency are identified numerically. Furthermore, the dynamical behaviors of the bubbles with parameters within the instability wedges can be divided into stable bubble oscillations and transient bubble oscillations. Attention is focused on the transient bubble oscillations. Numerical simulation shows that liquid jets form at t.he two poles of the transient bubble and lead to the breakup of the bubble. A possible mechanism resulting in the formation of the liquid jets is proposed and demonstrated with numerical simulation examples. Bjerknes forces between two bubbles are also investigated. It is found that the Bjerknes forces between two attracting bubbles can be predicted with a formula derived by Crum with amazing accuracy. However, numerical simulations indicate that a multiplication factor is needed for the cases of two repelling bubbles within short distance. The effect of shape oscillations on the translational motions of two bubbles is also examined. Interestingly, the shape oscillation has little effect on attracting bubbles, while significant effect on the translational motion of two repelling bubbles within short distance is observed.
by Yu-Hsuan Su.
Ph.D.
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Parini, Michael R. "Biofilm Removal Using Bubbles and Sound." Diss., CLICK HERE for online access, 2005. http://contentdm.lib.byu.edu/ETD/image/etd958.pdf.

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Zhang, Yuning. "Analysis of radial oscillations of gas bubbles in Newtonian or viscoelastic mediums under acoustic excitation." Thesis, University of Warwick, 2012. http://wrap.warwick.ac.uk/55427/.

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Acoustic cavitation plays an important role in a broad range of biomedical, chemical and oceanic engineering problems. For example, kidney stone can be crushed into the powder (being discharged naturally) by the acoustic cavitation generated by carefully controlled focused ultrasonic beams. Therefore, the prediction of generation of acoustic cavitation is essential to the aforementioned emerging non-invasive technique for kidney stone crushing. The objective of this PhD program is to study the generation of acoustic cavitation (e.g. through rectified mass diffusion across bubble interface) theoretically in the Newtonian fluids (e.g. water) or viscoelastic mediums (e.g. human soft tissue) under acoustic excitation of single or dual frequency. The compressibility and the viscosity of the liquid, heat and mass transfer across bubble-medium interface are all considered in this study. During this PhD program, the established works in the literature on the above topic have been re-examined. More physically general formulas of natural frequency and damping of gas bubble oscillations in Newtonian or viscoelastic mediums has been derived and further employed for solving the problem of bubble growth under acoustic field (i.e. rectified mass diffusion). For rectified mass diffusion of gas bubbles in Newtonian liquids, the predictions have been improved for high-frequency region of megahertz and above. Effects of medium viscoelasticity and dual-frequency acoustic excitation on rectified mass diffusion have also been studied. To facilitate the fast growth of bubble under acoustic field, dynamic-frequency and dual-frequency techniques have been proposed and demonstrated.
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Xi, Xiaoyu. "Controlled translation and oscillation of micro-bubbles near a surface in an acoustic standing wave field." Thesis, Imperial College London, 2013. http://hdl.handle.net/10044/1/10981.

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The removal of contamination particles from silicon wafers is critical in the semiconductor industry. Traditional cleaning techniques encounter difficulties in cleaning micro and nanometer-sized particles. A promising method that uses acoustically-driven micro-bubbles to clean contaminated surfaces has been reported. However, little is understood about the microscopic interaction between the micro-bubble and particle. This thesis explores the mechanism underlying the ultrasonic cleaning using micro-bubbles at the micrometer scale. The investigation was carried out from the perspective of bubble dynamics near a surface and bubble-particle interaction. Prior to contributing to the particle removal, micro-bubbles normally need to be transported to a target surface. The motion of a bubble was analyzed based on a force balance model for single and multi-bubble translations respectively. A good agreement is found between the observed bubble movement trajectories and the theoretical predictions. After arriving on a surface, a micro-bubble starts to disturb the flow field near the boundary through its oscillation. The characteristics of the flow field are closely related to the bubble oscillation modes. The influence of a wall on the change of bubble oscillation mode during its translation toward the boundary was studied. The relationship between bubble oscillation modes and the corresponding microstreaming around the bubble was established. The experimental results of bubble oscillation modes and the flow motion are quantitatively in good agreement with the simulation results. From a mechanic point of view, a possible ultrasonic cleaning mechanism is explained by exploring the relationship between different torques that are exerted on micro and sub-micrometer-sized particles. This estimation provides a qualitative insight into the ultrasonic cleaning process at a moderate pressure amplitude. The experimental investigation of the complicated particle detachment process requires improved test equipment to be developed in the future.
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Books on the topic "Acoustic Bubbles"

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Phelps, A. D. Active and passive acoustic bubble sizing. Southampton, England: University of Southampton, Institute of Sound and Vibration Research, 1994.

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Phelps, A. D. Acoustic bubble sizing, using active and passive techniques to compare ambient and entrained populations. Southampton, England: University of Southampton, Institute of Sound and Vibration, 1994.

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Ramble, D. G. The use of multiple acoustic techniques to size tethered and rising bubbles. Southampton, U. K: University of Southampton, Institute of Sound and Vibration Research, 1995.

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Doinikov, Alexander A. Bubble and particle dynamics in acoustic fields: Modern trends and applications. Kerala, India: Research Signpost, 2005.

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McIntyre, Trevor A. Ultrasonic acoustic characteristics of air bubbles in the surf zone. Monterey, Calif: Naval Postgraduate School, 1995.

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Godin, O. A. (Oleg A.), 1959-, ed. Akustika neodnorodnykh sred: V dvukh tomakh. Moskva: Nauka, n.d.

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Yasui, Kyuichi. Acoustic Cavitation and Bubble Dynamics. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-68237-2.

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1943-, Buckingham M. J., and Potter John, eds. Sea surface sound '94: Proceedings of the III International Meeting on Natural Physical Processes Related to Sea Surface Sound, University of California, Lake Arrowhead, 7-11 March 1994. Singapore: World Scientific, 1995.

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R, Kerman B., and Conference on Natural Physical Sources of Underwater Sound (1990 : Cambridge, England), eds. Natural physical sources of underwater sound: Sea surface sound (2). Dordrecht: Kluwer Academic Publishers, 1993.

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Kerman, B. R. Natural physical sources of underwater sound: Sea surface sound (2). Dordrecht: Springer Science, 1993.

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Book chapters on the topic "Acoustic Bubbles"

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Choi, Pak-Kon. "Acoustic Bubbles and Sonoluminescence." In Handbook of Ultrasonics and Sonochemistry, 1–29. Singapore: Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-287-470-2_2-2.

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Choi, Pak-Kon. "Acoustic Bubbles and Sonoluminescence." In Handbook of Ultrasonics and Sonochemistry, 177–205. Singapore: Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-287-278-4_2.

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Manasseh, Richard. "Acoustic Bubbles, Acoustic Streaming, and Cavitation Microstreaming." In Handbook of Ultrasonics and Sonochemistry, 1–36. Singapore: Springer Singapore, 2015. http://dx.doi.org/10.1007/978-981-287-470-2_5-1.

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Manasseh, Richard. "Acoustic Bubbles, Acoustic Streaming, and Cavitation Microstreaming." In Handbook of Ultrasonics and Sonochemistry, 33–68. Singapore: Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-287-278-4_5.

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Herwig, Heinz, and Bernd Nützel. "The Influence of Bubbles on Acoustic Propagation and Scattering." In Underwater Acoustic Data Processing, 105–11. Dordrecht: Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-2289-1_10.

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Prosperetti, Andrea, and Yue Hao. "Vapor Bubbles in Flow and Acoustic Fields." In Fluid Mechanics and Its Applications, 249–56. Dordrecht: Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-010-0796-2_30.

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Okitsu, Kenji, and Francesca Cavalieri. "Chemical and Physical Effects of Acoustic Bubbles." In SpringerBriefs in Molecular Science, 1–17. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-96734-9_1.

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Briquet, Martine. "Acoustic Propagation in Liquid Containing Gas-Bubbles: Effect of the Bubbles’ Size and Distribution." In Oceanographic Sciences Library, 267. Dordrecht: Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-009-4668-2_26.

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Nakagawa, Yasuhiko. "Parametric Mixing Effects in Surface Acoustic Waves Caused by Gas Bubbles in Liquids." In Physical Acoustics, 537–43. Boston, MA: Springer US, 1991. http://dx.doi.org/10.1007/978-1-4615-9573-1_71.

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Yoon, S. W., and B. K. Choi. "Active and passive acoustic roles of bubbles in the ocean." In Fluid Mechanics and Its Applications, 151–60. Dordrecht: Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-011-0938-3_14.

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Conference papers on the topic "Acoustic Bubbles"

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Leung, E. W., E. Baroth, C. K. Chan, and T. G. Wang. "Thermal acoustic interaction and flow phenomenon." In Drops and bubbles: third international colloquium. AIP, 1990. http://dx.doi.org/10.1063/1.38954.

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Elrod, S. A., B. Hadimioglu, B. T. Khuri-Yakub, E. G. Rawson, C. F. Quate, N. N. Mansour, and T. S. Lundgren. "Nozzleless droplets formation with focused acoustic beams." In Drops and bubbles: third international colloquium. AIP, 1990. http://dx.doi.org/10.1063/1.38949.

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Maksimov, Alexey. "Acoustic manifestations of frozen bubbles." In ICA 2013 Montreal. ASA, 2013. http://dx.doi.org/10.1121/1.4800489.

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Volkova, Ekaterina V., Elvira S. Nasibullaeva, and Nail A. Gumerov. "Numerical Simulations of Soluble Bubble Dynamics in Acoustic Fields." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-86243.

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Acoustic waves in liquids cause appearance, growth and dissolution of bubbles. Various physical and chemical effects related to bubble dynamics have been studied for a long time due to their importance for sonochemical reactors, acoustical cleaning, biomedical applications and more. One of the factors that may affect the self-organization of bubbles in acoustic fields and stable cavitation bubble formation is rectified diffusion. There exist approximate/asymptotic theories of rectified diffusion including a small amplitude approximation pioneered by Hsieh and Plesset and high radial Peclet number approximation of Fyrillas & Szeri, which do not take into account the influence of the small instantaneous mass change of the bubble on its dynamics. The goal of the present study is to check how these theories are good. For this purpose a numerical method based on the model of spherical bubble experiencing strong nonlinear oscillation in an isotropic acoustic field was developed and direct simulations were performed. Computations are accelerated using multicore CPU parallelization, which enable extensive parametric studies and validation of asymptotic methods via direct numerical simulation. Several cases were analyzed in details which show that the effect neglected in the previous studies may contribute to rectified diffusion (e.g. for micron size bubbles in the regime of sonoluminescence).
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Gumerov, Nail A., Iskander S. Akhatov, Claus-Dieter Ohl, Sergei P. Sametov, Maxim V. Khasimulin, and Galia I. Gilmanova. "Waves of Acoustically Induced Transparency in Bubbly Liquids: Theoretical Prediction and Experimental Validation." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-63284.

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Self-organization of bubbles in acoustic fields, or self-action of the acoustic waves in bubbly liquids is a strongly nonlinear phenomenon due to two-way interaction of the bubbles and the acoustic field. Theoretical model and preliminary computations predict that waves of self-induced acoustic transparency may exist. Such effect is confirmed in the experiments presented in this paper. Formation of a wave of void fraction which rapidly propagates through the bubbly medium leaving a region almost free of bubbles behind its front is observed in the experiments. Measurements of the dynamics of such a wave at different acoustic frequencies and amplitudes are carried out. A three dimensional model of self-organization of a polydisperse bubble continuum in acoustic field is developed and the results of simulations are compared with experiments. A good agreement of the theory and experiment is found.
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Lee, Ho Sung, and Danny M. Higgs. "Sound of Single Vapor Bubbles." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-16288.

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The recent preliminary acoustic measurements of single vapor bubbles on a heated platinum wire, combined with high-speed digital photography, provided significant information for the vapor bubble dynamics such as growth, departure, collapse or coalescence with a previous bubble. Furthermore, under a given condition, the numerous consecutive single bubbles consistently showed almost identical waveforms, even at different times. This surprising result indicates that the phenomenon is not a chaotic process, but an orderly mathematical process. The deceleration of a growing bubble following the rapid initial growth was apparently detected by the acoustic emissions as a negative acoustic pressure. This is believed to be a new observation and not seen in gas bubbles. Some successive bubbles clearly underwent the spherical harmonics and compared well with a series of photographs. These results are in contrast with the previous indeterminate measurements on the sound intensity and frequency in boiling in the literature. The information for vapor bubble dynamics will be supplementary to the gas bubble dynamics such as cavitation, sonoluminescence, etc. Visual observations will be valuable for the mathematicians who study the spherical harmonics analytically. Also, the technique and information may be applicable to the fields of science and engineering associated with vapor bubbles motion including boiling.
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Lu, Bo, and Arthur E. Ruggles. "Numerical Simulation of Acoustic Streaming in Gas-Liquid Two-Phase Flow." In ASME 2005 Fluids Engineering Division Summer Meeting. ASMEDC, 2005. http://dx.doi.org/10.1115/fedsm2005-77305.

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Acoustic streaming phenomena pertaining to liquid-gas two-phase flow in a one-dimensional rigid duct is investigated numerically. The oscillatory bubbly flow is generated due to the sinusoidal vibration of the vertical left wall of the enclosure. Time-averaged streaming flow patterns exist in the duct as a consequence of interaction between gas bubbles and liquid which are similar to the Rayleigh-type acoustic streaming phenomena extensively investigated in single-phase flow. The liquid is treated as incompressible with a homogeneous distribution of non-condensable gas bubbles. The system is modeled with coupled nonlinear and flux-conservative partial differential equations combined with the Rayleigh-Plesset equation governing the bubble radius. The viscous interaction between bubbles and the surrounding incompressible liquid phase is the main mechanism for attenuation of the wave energy considered in this analysis. The numerical solutions are obtained by a control-volume based finite-volume Lagrangian method.
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Lierke, E. G., D. Lühmann, and E. W. Leung. "Terrestrial levitation, deformation and disintegration (atomization) of liquids and melts in a one-axial acoustic standing wave." In Drops and bubbles: third international colloquium. AIP, 1990. http://dx.doi.org/10.1063/1.38955.

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Hooshanginejad, Alireza, Timothy J. Sheppard, Janeth Manyalla, John Jaicks, and Sunghwan Jung. "Cleaning Effect of Bubbles Impacting Tilted Walls Under Acoustic Waves." In ASME 2022 Fluids Engineering Division Summer Meeting. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/fedsm2022-86897.

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Abstract The motion of bubbles near walls is ubiquitous for cleaning purposes in natural and industrial systems. Shear stress induced by bubbles on the surface is used to remove particles or bacteria adhering to the surface. In this study, we investigate the cleaning effect of bubbles on a surface coated with a protein soil solution with and without the presence of an acoustic wave transducer at a single frequency. In addition, we test different drying times for the coated surfaces before conducting the cleaning tests. Our results show that the best bubble cleaning effect occurs for the shortest drying time of the coating and an acoustic wave of 100 Hz.
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Birjandi, Amir Hossein, and Eric Bibeau. "Bubble Effects on the Acoustic Doppler Velocimeter (ADV) Measurements." In ASME 2009 Fluids Engineering Division Summer Meeting. ASMEDC, 2009. http://dx.doi.org/10.1115/fedsm2009-78251.

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Acoustic Doppler Velocimeter (ADV) is a useful technique for measuring flow velocities with frequency variations of up to approximately 200 Hz in laboratory settings and in field applications. Although measuring velocity with ADV has advantages over other velocity measurement methods, this technique is sensitive to operating conditions: in addition to noise, the signal can contain spikes with large amplitudes, a disadvantage of ADV. In this study, the effect of bubbles on ADV signals is experimentally assessed in a laboratory setting. Bubbles can intersect the sampling volume and the acoustic beams creating spikes. The impact and amplitude of these spikes is a function of the bubble size and position when it crosses the ADV sampling volume and the acoustic beams. Bubbles that intersect the sampling volume generate spikes in all three velocity directions simultaneously; bubbles that intersect acoustic beams, which span between the sampling volume and the ADV receivers, impact the velocity data in one or two directions, and has a negligible effect in the third direction. Bubbles that intersect the X-direction acoustic beam create spikes in velocity data in both X- and Z-directions, but have no significant impact on the Y-direction; the Y- and X-directions have spikes and the Z-direction is not significantly impacted, when bubbles intersect the Y-direction acoustic beam. In addition, spikes increase the magnitude of the power spectra at high frequencies. Without bubbles, the autocorrelation in the time domain decreases in value as the time-lag increases, approaching zero after 5 seconds. The presences of bubbles cause a large peak in the autocorrelation at a zero time-lag, and no autocorrelation thereafter. Furthermore, the autocorrelation without bubbles permit turbulence length scales to be calculated because of the positive autocorrelation value; unless spikes are removed by using an appropriate filter when bubbles are present, turbulence length scales cannot be calculated because the autocorrelation is zero.
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Reports on the topic "Acoustic Bubbles"

1

Vagle, Svein. Acoustic Measurements of Tiny Optically Active Bubbles in the Upper Ocean. Fort Belvoir, VA: Defense Technical Information Center, September 2007. http://dx.doi.org/10.21236/ada573277.

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Deane, Grant B. Bubbles and Acoustics Communications Experiment: The Acoustical and Physical Characterization of Bubble Plumes. Fort Belvoir, VA: Defense Technical Information Center, August 2002. http://dx.doi.org/10.21236/ada627235.

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Melville, W. K. Acoustic Properties of Bubble Plumes. Fort Belvoir, VA: Defense Technical Information Center, September 2000. http://dx.doi.org/10.21236/ada425367.

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Young, David, Brian McFall, and Duncan Bryant. Bubble image velocimetry with an acoustic camera. Engineer Research and Development Center (U.S.), June 2019. http://dx.doi.org/10.21079/11681/32863.

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Farmer, David M. The Acoustical Oceanography Of Bubbles: URI Component. Fort Belvoir, VA: Defense Technical Information Center, September 2008. http://dx.doi.org/10.21236/ada535560.

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Farmer, David M. The Acoustical Oceanography of Bubbles: URI Component. Fort Belvoir, VA: Defense Technical Information Center, September 2007. http://dx.doi.org/10.21236/ada541754.

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Farmer, David M. The Acoustical Oceanography of Bubbles: URI Component. Fort Belvoir, VA: Defense Technical Information Center, September 2010. http://dx.doi.org/10.21236/ada542109.

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Farmer, David M. The Acoustical Oceanography of Bubbles: URI Component. Fort Belvoir, VA: Defense Technical Information Center, September 2006. http://dx.doi.org/10.21236/ada629947.

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Farmer, David M. The Acoustical Oceanography of Bubbles: URI Component. Fort Belvoir, VA: Defense Technical Information Center, September 2011. http://dx.doi.org/10.21236/ada571623.

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Weber, Thomas C. Bubble Clustering in the Ocean and Acoustic Implications. Fort Belvoir, VA: Defense Technical Information Center, November 2009. http://dx.doi.org/10.21236/ada509542.

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